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单词 photovisual
释义

photovisual

/ˌfəʊtə(ʊ)ˈvɪʒʊ(ə)l/ /ˌfəʊtə(ʊ)ˈvɪzjʊ(ə)l/
Astronomy
adjective
1Designating or relating to a lens or optical instrument that brings to the same focus both visible light and light that can only be detected photographically (usually ultraviolet). Also as noun: such a lens or telescope.
2Designating a stellar magnitude determined in terms of the spectral response of the eye by photographically mimicking this response using colour filters.

Origin

Late 19th century; earliest use found in Harper's Magazine. From photo- + visual.

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更新时间:2024/9/24 3:22:40